Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)
And for me I use T2 for my exit immigration if I already checked in at Kowloon station. It helps me to skip the massive security line at T1 !